Note 11 - Intangible Assets (Details) - Acquired Intangible Assets, Subject to Amortization (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 01, 2014	Feb. 02, 2013
Acquired intangible assets:
Acquired Intangible, Gross Value	$ 165,760	$ 161,569
Acquired Intangible, Impairment	(63,632)	(63,294)
Acquired Intangible, Accumulated Amortization and Effect of Currency Translation	(72,348)	(63,198)
Acquired Intangible, Net Value	29,780	36,573
Developed Technology Rights [Member]
Acquired intangible assets:
Acquired Intangible, Gross Value	76,639	76,639
Acquired Intangible, Impairment	(24,614)	(24,614)
Acquired Intangible, Accumulated Amortization and Effect of Currency Translation	(40,334)	(34,567)
Acquired Intangible, Net Value	11,691	17,458
Acquired Intangible, Weighted Average remaining amortization period	2 years 328 days	3 years 219 days
Customer Relationships [Member]
Acquired intangible assets:
Acquired Intangible, Gross Value	50,704	50,704
Acquired Intangible, Impairment	(30,486)	(30,486)
Acquired Intangible, Accumulated Amortization and Effect of Currency Translation	(17,048)	(15,782)
Acquired Intangible, Net Value	3,170	4,436
Acquired Intangible, Weighted Average remaining amortization period	2 years 255 days	3 years 219 days
Trademarks [Member]
Acquired intangible assets:
Acquired Intangible, Gross Value	2,678	2,678
Acquired Intangible, Accumulated Amortization and Effect of Currency Translation	(2,102)	(1,983)
Acquired Intangible, Net Value	576	695
Acquired Intangible, Weighted Average remaining amortization period	4 years 328 days	5 years 328 days
Noncompete Agreements [Member]
Acquired intangible assets:
Acquired Intangible, Gross Value	1,400	1,400
Acquired Intangible, Accumulated Amortization and Effect of Currency Translation	(1,400)	(1,400)
Purchased IP-Amortizing [Member]
Acquired intangible assets:
Acquired Intangible, Gross Value	21,569	21,370
Acquired Intangible, Impairment	(5,516)	(5,516)
Acquired Intangible, Accumulated Amortization and Effect of Currency Translation	(11,464)	(7,970)
Acquired Intangible, Net Value	4,589	7,884
Acquired Intangible, Weighted Average remaining amortization period	1 year 6 months	2 years 146 days
Acquired Intangible Assets Subtotal [Member]
Acquired intangible assets:
Acquired Intangible, Gross Value	152,990	152,791
Acquired Intangible, Impairment	(60,616)	(60,616)
Acquired Intangible, Accumulated Amortization and Effect of Currency Translation	(72,348)	(61,702)
Acquired Intangible, Net Value	20,026	30,473
Acquired Intangible, Weighted Average remaining amortization period	2 years 219 days	3 years 146 days
Purchased Intellectual Property - not yet deployed [Member]
Acquired intangible assets:
Acquired Intangible, Gross Value	12,770	8,778
Acquired Intangible, Impairment	(3,016)	(2,678)
Acquired Intangible, Net Value	$ 9,754	$ 6,100